﻿using System;
using System.Drawing;
using System.Diagnostics;
using System.IO;
using System.Reflection;
using System.Runtime.InteropServices;
using System.Security.Cryptography;
using System.Text;
using System.Text.RegularExpressions;
using System.Web;
using System.Web.UI;
using Microsoft.VisualBasic;
using System.Collections;
using System.Net;
namespace Discuz.Common
{
	/// <summary>
	/// 工具类
	/// </summary>
    public class Utils
	{
        public const string ASSEMBLY_VERSION = "2.5.0";

        private static Regex RegexBr = new Regex(@"(\r\n)", RegexOptions.IgnoreCase);
        public static Regex RegexFont = new Regex(@"<font color=" + "\".*?\"" + @">([\s\S]+?)</font>", Utils.GetRegexCompiledOptions());

        private static FileVersionInfo AssemblyFileVersion = FileVersionInfo.GetVersionInfo(Assembly.GetExecutingAssembly().Location);

        private static string TemplateCookieName = string.Format("dnttemplateid_{0}_{1}_{2}", AssemblyFileVersion.FileMajorPart, AssemblyFileVersion.FileMinorPart, AssemblyFileVersion.FileBuildPart);


		/// <summary>
		/// 得到正则编译参数设置
		/// </summary>
        /// <returns>参数设置</returns>
		public static RegexOptions GetRegexCompiledOptions()
		{
#if NET1
            return RegexOptions.Compiled;
#else
            return RegexOptions.None;
#endif
        }
	
		/// <summary>
		/// 返回字符串真实长度, 1个汉字长度为2
		/// </summary>
		/// <returns>字符长度</returns>
		public static int GetStringLength(string str)
		{
			return Encoding.Default.GetBytes(str).Length;
		}
		
		public static bool IsCompriseStr(string str, string stringarray, string strsplit)
		{
			if (stringarray == "" || stringarray == null)
			{
				return false;
			}

			str = str.ToLower();
			string[] stringArray = Utils.SplitString(stringarray.ToLower(), strsplit);
			for (int i = 0; i < stringArray.Length; i++)
			{
				//string t1 = str;
				//string t2 = stringArray[i];
				if(str.IndexOf(stringArray[i]) > -1)
				{
					return true;
				}
			}
			return false;
		}

		/// <summary>
		/// 判断指定字符串在指定字符串数组中的位置
		/// </summary>
		/// <param name="strSearch">字符串</param>
		/// <param name="stringArray">字符串数组</param>
		/// <param name="caseInsensetive">是否不区分大小写, true为不区分, false为区分</param>
		/// <returns>字符串在指定字符串数组中的位置, 如不存在则返回-1</returns>
		public static int GetInArrayID(string strSearch, string[] stringArray, bool caseInsensetive)
		{
			for (int i = 0; i < stringArray.Length; i++)
			{
				if (caseInsensetive)
				{
					if (strSearch.ToLower() == stringArray[i].ToLower())
					{
						return i;
					}
				}
				else
				{
					if (strSearch == stringArray[i])
					{
						return i;
					}
				}				
				
			}
			return -1;
		}

		
		/// <summary>
		/// 判断指定字符串在指定字符串数组中的位置
		/// </summary>
		/// <param name="strSearch">字符串</param>
		/// <param name="stringArray">字符串数组</param>
		/// <returns>字符串在指定字符串数组中的位置, 如不存在则返回-1</returns>		
		public static int GetInArrayID(string strSearch, string[] stringArray)
		{
			return GetInArrayID(strSearch, stringArray, true);
		}
		
		/// <summary>
		/// 判断指定字符串是否属于指定字符串数组中的一个元素
		/// </summary>
		/// <param name="strSearch">字符串</param>
		/// <param name="stringArray">字符串数组</param>
		/// <param name="caseInsensetive">是否不区分大小写, true为不区分, false为区分</param>
		/// <returns>判断结果</returns>
		public static bool InArray(string strSearch, string[] stringArray, bool caseInsensetive)
		{
			return GetInArrayID(strSearch, stringArray, caseInsensetive) >= 0;
		}

		/// <summary>
		/// 判断指定字符串是否属于指定字符串数组中的一个元素
		/// </summary>
		/// <param name="str">字符串</param>
		/// <param name="stringarray">字符串数组</param>
		/// <returns>判断结果</returns>
		public static bool InArray(string str, string[] stringarray)
		{
			return InArray(str, stringarray, false);
		}

		/// <summary>
		/// 判断指定字符串是否属于指定字符串数组中的一个元素
		/// </summary>
		/// <param name="str">字符串</param>
		/// <param name="stringarray">内部以逗号分割单词的字符串</param>
		/// <returns>判断结果</returns>
		public static bool InArray(string str, string stringarray)
		{
			return InArray(str, SplitString(stringarray, ","), false);
		}

		/// <summary>
		/// 判断指定字符串是否属于指定字符串数组中的一个元素
		/// </summary>
		/// <param name="str">字符串</param>
		/// <param name="stringarray">内部以逗号分割单词的字符串</param>
		/// <param name="strsplit">分割字符串</param>
		/// <returns>判断结果</returns>
		public static bool InArray(string str, string stringarray, string strsplit)
		{
			return InArray(str, SplitString(stringarray, strsplit), false);
		}
		
		/// <summary>
		/// 判断指定字符串是否属于指定字符串数组中的一个元素
		/// </summary>
		/// <param name="str">字符串</param>
		/// <param name="stringarray">内部以逗号分割单词的字符串</param>
		/// <param name="strsplit">分割字符串</param>
		/// <param name="caseInsensetive">是否不区分大小写, true为不区分, false为区分</param>
		/// <returns>判断结果</returns>
		public static bool InArray(string str, string stringarray, string strsplit, bool caseInsensetive)
		{
			return InArray(str, SplitString(stringarray, strsplit), caseInsensetive);
		}

		
		/// <summary>
		/// 删除字符串尾部的回车/换行/空格
		/// </summary>
		/// <param name="str"></param>
		/// <returns></returns>
		public static string RTrim(string str)
		{
			for (int i = str.Length; i >= 0; i--)
			{
				if (str[i].Equals(" ") || str[i].Equals("\r") || str[i].Equals("\n"))
				{
					str.Remove(i, 1);
				}
			}
			return str;
		}


		/// <summary>
		/// 清除给定字符串中的回车及换行符
		/// </summary>
		/// <param name="str">要清除的字符串</param>
		/// <returns>清除后返回的字符串</returns>
		public static string ClearBR(string str)
		{
			//Regex r = null;
			Match m = null;

			//r = new Regex(@"(\r\n)",RegexOptions.IgnoreCase);
			for (m = RegexBr.Match(str); m.Success; m = m.NextMatch()) 
			{
				str = str.Replace(m.Groups[0].ToString(),"");
			}


			return str;
		}
		
		/// <summary>
		/// 从字符串的指定位置截取指定长度的子字符串
		/// </summary>
		/// <param name="str">原字符串</param>
		/// <param name="startIndex">子字符串的起始位置</param>
		/// <param name="length">子字符串的长度</param>
		/// <returns>子字符串</returns>
		public static string CutString(string str,int startIndex,int length)
		{
			if (startIndex >= 0)
			{
				if (length < 0)
				{
					length = length * -1;
					if (startIndex - length < 0)
					{
						length = startIndex;
						startIndex = 0;
					}
					else
					{
						startIndex = startIndex - length;
					}
				}


				if (startIndex > str.Length)
				{
					return "";
				}


			}
			else
			{
				if (length < 0)
				{
					return "";
				}
				else
				{
					if (length + startIndex > 0)
					{
						length = length + startIndex;
						startIndex = 0;
					}
					else
					{
						return "";
					}
				}
			}

			if (str.Length - startIndex < length)
			{
				length = str.Length - startIndex;
			}

			return str.Substring(startIndex,length);
		}

		/// <summary>
		/// 从字符串的指定位置开始截取到字符串结尾的了符串
		/// </summary>
		/// <param name="str">原字符串</param>
		/// <param name="startIndex">子字符串的起始位置</param>
		/// <returns>子字符串</returns>
		public static string CutString(string str,int startIndex)
		{
			return CutString(str,startIndex,str.Length);
		}
		


		/// <summary>
		/// 获得当前绝对路径
		/// </summary>
		/// <param name="strPath">指定的路径</param>
		/// <returns>绝对路径</returns>
		public static string GetMapPath(string strPath)
		{
			if (HttpContext.Current != null)
			{
				return HttpContext.Current.Server.MapPath(strPath);
			}
			else //非web程序引用
			{
                strPath = strPath.Replace("/", "\\");
                if (strPath.StartsWith("\\"))
                {
                    strPath = strPath.Substring(strPath.IndexOf('\\', 1)).TrimStart('\\');
                }
				return System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory, strPath);
			}
		}



		/// <summary>
		/// 返回文件是否存在
		/// </summary>
		/// <param name="filename">文件名</param>
		/// <returns>是否存在</returns>
		public static bool FileExists(string filename)
		{
			return System.IO.File.Exists(filename);
		}



		/// <summary>
		/// 以指定的ContentType输出指定文件文件
		/// </summary>
		/// <param name="filepath">文件路径</param>
		/// <param name="filename">输出的文件名</param>
		/// <param name="filetype">将文件输出时设置的ContentType</param>
		public static void ResponseFile(string filepath, string  filename, string filetype)
		{
			Stream iStream = null;

			// 缓冲区为10k
			byte[] buffer = new Byte[10000];

			// 文件长度
			int length;

			// 需要读的数据长度
			long dataToRead;

			try
			{
				// 打开文件
				iStream = new FileStream(filepath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);


				// 需要读的数据长度
				dataToRead = iStream.Length;

				HttpContext.Current.Response.ContentType = filetype;
				HttpContext.Current.Response.AddHeader("Content-Disposition", "attachment;filename=" + Utils.UrlEncode(filename.Trim()).Replace("+", " "));

				while (dataToRead > 0)
				{
					// 检查客户端是否还处于连接状态
					if (HttpContext.Current.Response.IsClientConnected)
					{
						length = iStream.Read(buffer, 0, 10000);
						HttpContext.Current.Response.OutputStream.Write(buffer, 0, length);
						HttpContext.Current.Response.Flush();
						buffer = new Byte[10000];
						dataToRead = dataToRead - length;
					}
					else
					{
						// 如果不再连接则跳出死循环
						dataToRead = -1;
					}
				}
			}
			catch (Exception ex)
			{
				HttpContext.Current.Response.Write("Error : " + ex.Message);
			}
			finally
			{
				if (iStream != null)
				{
					// 关闭文件
					iStream.Close();
				}
			}
			HttpContext.Current.Response.End();
		}

		/// <summary>
		/// 判断文件名是否为浏览器可以直接显示的图片文件名
		/// </summary>
		/// <param name="filename">文件名</param>
		/// <returns>是否可以直接显示</returns>
		public static bool IsImgFilename(string filename)
		{
			filename = filename.Trim();
			if (filename.EndsWith(".") || filename.IndexOf(".") == -1)
			{
				return false;
			}
			string extname = filename.Substring(filename.LastIndexOf(".") + 1).ToLower();
			return (extname == "jpg" || extname == "jpeg" || extname == "png" || extname == "bmp" || extname == "gif");
		}			
		

		/// <summary>
		/// int型转换为string型
		/// </summary>
		/// <returns>转换后的string类型结果</returns>
		public static string IntToStr(int intValue)
		{
			//
			return Convert.ToString(intValue);
		}
		/// <summary>
		/// MD5函数
		/// </summary>
		/// <param name="str">原始字符串</param>
		/// <returns>MD5结果</returns>
		public static string MD5(string str)
		{
			byte[] b = Encoding.Default.GetBytes(str);
			b = new MD5CryptoServiceProvider().ComputeHash(b);
			string ret = "";
			for(int i = 0; i < b.Length; i++)
				ret += b[i].ToString("x").PadLeft(2,'0');
			return ret;
		}

		/// <summary>
		/// SHA256函数
		/// </summary>
		/// /// <param name="str">原始字符串</param>
		/// <returns>SHA256结果</returns>
		public static string SHA256(string str)
		{
			byte[] SHA256Data = Encoding.UTF8.GetBytes(str);
			SHA256Managed Sha256 = new SHA256Managed();
			byte[] Result = Sha256.ComputeHash(SHA256Data);
			return Convert.ToBase64String(Result);  //返回长度为44字节的字符串
		}


		/// <summary>
		/// 字符串如果操过指定长度则将超出的部分用指定字符串代替
		/// </summary>
		/// <param name="p_SrcString">要检查的字符串</param>
		/// <param name="p_Length">指定长度</param>
		/// <param name="p_TailString">用于替换的字符串</param>
		/// <returns>截取后的字符串</returns>
		public static string GetSubString(string p_SrcString, int p_Length, string p_TailString) 
		{
            return GetSubString(p_SrcString, 0, p_Length, p_TailString);
            //return GetSubStrings(p_SrcString, p_Length*2, p_TailString);
		}

        public static string GetUnicodeSubString(string str, int len, string p_TailString)
        {
            string result = string.Empty;// 最终返回的结果
            int byteLen = System.Text.Encoding.Default.GetByteCount(str);// 单字节字符长度
            int charLen = str.Length;// 把字符平等对待时的字符串长度
            int byteCount = 0;// 记录读取进度
            int pos = 0;// 记录截取位置
            if (byteLen > len)
            {
                for (int i = 0; i < charLen; i++)
                {
                    if (Convert.ToInt32(str.ToCharArray()[i]) > 255)// 按中文字符计算加2
                        byteCount += 2;
                    else// 按英文字符计算加1
                        byteCount += 1;
                    if (byteCount > len)// 超出时只记下上一个有效位置
                    {
                        pos = i;
                        break;
                    }
                    else if (byteCount == len)// 记下当前位置
                    {
                        pos = i + 1;
                        break;
                    }
                }

                if (pos >= 0)
                    result = str.Substring(0, pos) + p_TailString;
            }
            else
                result = str;

            return result;
        }
        
        /// <summary>
        /// 取指定长度的字符串
        /// </summary>
        /// <param name="p_SrcString">要检查的字符串</param>
        /// <param name="p_StartIndex">起始位置</param>
        /// <param name="p_Length">指定长度</param>
        /// <param name="p_TailString">用于替换的字符串</param>
        /// <returns>截取后的字符串</returns>
        public static string GetSubString(string p_SrcString, int p_StartIndex, int p_Length, string p_TailString)
        {
            string myResult = p_SrcString;

            Byte[] bComments = Encoding.UTF8.GetBytes(p_SrcString);
            foreach (char c in Encoding.UTF8.GetChars(bComments))
            {    //当是日文或韩文时(注:中文的范围:\u4e00 - \u9fa5, 日文在\u0800 - \u4e00, 韩文为\xAC00-\xD7A3)
                if ((c > '\u0800' && c < '\u4e00') || (c > '\xAC00' && c < '\xD7A3'))
                {
                    //if (System.Text.RegularExpressions.Regex.IsMatch(p_SrcString, "[\u0800-\u4e00]+") || System.Text.RegularExpressions.Regex.IsMatch(p_SrcString, "[\xAC00-\xD7A3]+"))
                    //当截取的起始位置超出字段串长度时
                    if (p_StartIndex >= p_SrcString.Length)
                    {
                        return "";
                    }
                    else
                    {
                        return p_SrcString.Substring(p_StartIndex,
                                                       ((p_Length + p_StartIndex) > p_SrcString.Length) ? (p_SrcString.Length - p_StartIndex) : p_Length);
                    }
                }
            }

 
            if (p_Length >= 0)
            {
                byte[] bsSrcString = Encoding.Default.GetBytes(p_SrcString);

                //当字符串长度大于起始位置
                if (bsSrcString.Length > p_StartIndex)
                {
                    int p_EndIndex = bsSrcString.Length;

                    //当要截取的长度在字符串的有效长度范围内
                    if (bsSrcString.Length > (p_StartIndex + p_Length))
                    {
                        p_EndIndex = p_Length + p_StartIndex;
                    }
                    else  
                    {   //当不在有效范围内时,只取到字符串的结尾

                        p_Length = bsSrcString.Length - p_StartIndex;
                        p_TailString = "";
                    }

                   

                    int nRealLength = p_Length;
                    int[] anResultFlag = new int[p_Length];
                    byte[] bsResult = null;

                    int nFlag = 0;
                    for (int i = p_StartIndex; i < p_EndIndex; i++)
                    {

                        if (bsSrcString[i] > 127)
                        {
                            nFlag++;
                            if (nFlag == 3)
                            {
                                nFlag = 1;
                            }
                        }
                        else
                        {
                            nFlag = 0;
                        }

                        anResultFlag[i] = nFlag;
                    }

                    if ((bsSrcString[p_EndIndex - 1] > 127) && (anResultFlag[p_Length - 1] == 1))
                    {
                        nRealLength = p_Length + 1;
                    }

                    bsResult = new byte[nRealLength];

                    Array.Copy(bsSrcString, p_StartIndex, bsResult, 0, nRealLength);

                    myResult = Encoding.Default.GetString(bsResult);

                    myResult = myResult + p_TailString;
                }
            }

            return myResult; 
        }

		/// <summary>
		/// 自定义的替换字符串函数
		/// </summary>
		public static string ReplaceString(string SourceString, string SearchString,string ReplaceString, bool IsCaseInsensetive)
		{
			return Regex.Replace(SourceString, Regex.Escape(SearchString), ReplaceString, IsCaseInsensetive ? RegexOptions.IgnoreCase : RegexOptions.None);
		}

		/// <summary>
		/// 生成指定数量的html空格符号
		/// </summary>
		public static string GetSpacesString(int spacesCount)
		{
			StringBuilder sb = new StringBuilder();
            for (int i = 0; i < spacesCount; i++)
			{
				sb.Append(" &nbsp;&nbsp;");
			}
			return sb.ToString();
		}

		/// <summary>
		/// 检测是否符合email格式
		/// </summary>
		/// <param name="strEmail">要判断的email字符串</param>
		/// <returns>判断结果</returns>
		public static bool IsValidEmail(string strEmail)
		{
			return Regex.IsMatch(strEmail, @"^([\w-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([\w-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$");
		}

        public static bool IsValidDoEmail(string strEmail)
        {
            return Regex.IsMatch(strEmail, @"^@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([\w-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$");
        }

        /// <summary>
        /// 检测是否是正确的Url
        /// </summary>
        /// <param name="strUrl">要验证的Url</param>
        /// <returns>判断结果</returns>
        public static bool IsURL(string strUrl)
        {
            return Regex.IsMatch(strUrl, @"^(http|https)\://([a-zA-Z0-9\.\-]+(\:[a-zA-Z0-9\.&%\$\-]+)*@)*((25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9])\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[0-9])|localhost|([a-zA-Z0-9\-]+\.)*[a-zA-Z0-9\-]+\.(com|edu|gov|int|mil|net|org|biz|arpa|info|name|pro|aero|coop|museum|[a-zA-Z]{1,10}))(\:[0-9]+)*(/($|[a-zA-Z0-9\.\,\?\'\\\+&%\$#\=~_\-]+))*$");
        }

		public static string GetEmailHostName(string strEmail)
		{
			if (strEmail.IndexOf("@") < 0)
			{
				return "";
			}
			return strEmail.Substring(strEmail.LastIndexOf("@")).ToLower();
		}

		/// <summary>
		/// 判断是否为base64字符串
		/// </summary>
		/// <param name="str"></param>
		/// <returns></returns>
		public static bool IsBase64String(string str)
		{
			//A-Z, a-z, 0-9, +, /, =
			return Regex.IsMatch(str, @"[A-Za-z0-9\+\/\=]"); 
		}
		/// <summary>
		/// 检测是否有Sql危险字符
		/// </summary>
		/// <param name="str">要判断字符串</param>
		/// <returns>判断结果</returns>
		public static bool IsSafeSqlString(string str)
		{

			return !Regex.IsMatch(str, @"[-|;|,|\/|\(|\)|\[|\]|\}|\{|%|@|\*|!|\']"); 
		}

		/// <summary>
		/// 检测是否有危险的可能用于链接的字符串
		/// </summary>
		/// <param name="str">要判断字符串</param>
		/// <returns>判断结果</returns>
		public static bool IsSafeUserInfoString(string str)
		{
            return !Regex.IsMatch(str, @"^\s*$|^c:\\con\\con$|[%,\*" + "\"" + @"\s\t\<\>\&]|游客|^Guest");
		}

		/// <summary>
		/// 清理字符串
		/// </summary>
		public static string CleanInput(string strIn)
		{
			return Regex.Replace(strIn.Trim(), @"[^\w\.@-]", ""); 
		}

		/// <summary>
		/// 返回URL中结尾的文件名
		/// </summary>		
		public static string GetFilename(string url)
		{
			if (url == null)
			{
				return "";
			}
			string[] strs1 = url.Split(new char[]{'/'});
			return strs1[strs1.Length - 1].Split(new char[]{'?'})[0];
		}

		/// <summary>
		/// 根据阿拉伯数字返回月份的名称(可更改为某种语言)
		/// </summary>	
		public static string[] Monthes
		{
			get
			{
				return new string[]{"January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"};
			}
		}

		/// <summary>
		/// 替换回车换行符为html换行符
		/// </summary>
		public static string StrFormat(string str)
		{
			string str2;

			if (str == null)
			{
				str2 = "";
			}
			else
			{
				str = str.Replace("\r\n", "<br />");
				str = str.Replace("\n", "<br />");
				str2 = str;
			}
			return str2;
		}

		/// <summary>
		/// 返回标准日期格式string
		/// </summary>
		public static string GetDate()
		{
			return DateTime.Now.ToString("yyyy-MM-dd");
		}

		/// <summary>
		/// 返回指定日期格式
		/// </summary>
		public static string GetDate(string datetimestr,string replacestr)
		{
			if (datetimestr == null)
			{
				return replacestr;
			}

			if (datetimestr.Equals(""))
			{
				return replacestr;
			}

			try
			{
				datetimestr = Convert.ToDateTime(datetimestr).ToString("yyyy-MM-dd").Replace("1900-01-01",replacestr);
			}
			catch
			{
				return replacestr;
			}
			return datetimestr;
			
		}


		/// <summary>
		/// 返回标准时间格式string
		/// </summary>
		public static string GetTime()
		{
			return DateTime.Now.ToString("HH:mm:ss");
		}

		/// <summary>
		/// 返回标准时间格式string
		/// </summary>
		public static string GetDateTime()
		{
			return DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");
		}

		/// <summary>
		/// 返回相对于当前时间的相对天数
		/// </summary>
		public static string GetDateTime(int relativeday)
		{
			return DateTime.Now.AddDays(relativeday).ToString("yyyy-MM-dd HH:mm:ss");
		}

		/// <summary>
		/// 返回标准时间格式string
		/// </summary>
		public static string GetDateTimeF()
		{
			return DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss:fffffff");
		}

		/// <summary>
		/// 返回标准时间 
		/// </sumary>
		public static string GetStandardDateTime(string fDateTime, string formatStr)
		{
            if (fDateTime == "0000-0-0 0:00:00")
            {
                return fDateTime;
            }
			DateTime s = Convert.ToDateTime(fDateTime);
			return s.ToString(formatStr);
		}

		/// <summary>
		/// 返回标准时间 yyyy-MM-dd HH:mm:ss
		/// </sumary>
		public static string GetStandardDateTime(string fDateTime)
		{
			return GetStandardDateTime(fDateTime, "yyyy-MM-dd HH:mm:ss");
		}

        /// <summary>
        /// 返回标准时间 yyyy-MM-dd
        /// </sumary>
        public static string GetStandardDate(string fDate)
        {
            return GetStandardDateTime(fDate, "yyyy-MM-dd");
        }

		/// <summary>
		/// 
		/// </summary>
		/// <returns></returns>
		public static bool IsTime(string timeval)
		{
			return Regex.IsMatch(timeval, @"^((([0-1]?[0-9])|(2[0-3])):([0-5]?[0-9])(:[0-5]?[0-9])?)$"); 
		}

        
		public static string GetRealIP()
		{
            string ip = DNTRequest.GetIP();

			return ip;
		}

		/// <summary>
		/// 改正sql语句中的转义字符
		/// </summary>
		public static string mashSQL(string str)
		{
			string str2;

			if (str == null)
			{
				str2 = "";
			}
			else
			{
				str = str.Replace("\'", "'");
				str2 = str;
			}
			return str2;
		}

		/// <summary>
		/// 替换sql语句中的有问题符号
		/// </summary>
		public static string ChkSQL(string str)
		{
			string str2;

			if (str == null)
			{
				str2 = "";
			}
			else
			{
				str = str.Replace("'", "''");
				str2 = str;
			}
			return str2;
		}


		/// <summary>
		/// 转换为静态html
		/// </summary>
		public void transHtml(string path,string outpath)        
		{
			Page page = new Page();
			StringWriter writer = new StringWriter();
			page.Server.Execute(path, writer);
			FileStream fs;
			if(File.Exists(page.Server.MapPath("") + "\\" + outpath))              
			{
				File.Delete(page.Server.MapPath("") + "\\" + outpath);
				fs = File.Create(page.Server.MapPath("") + "\\" + outpath);
			}
			else            
			{
				fs = File.Create(page.Server.MapPath("") + "\\" + outpath);
			}
			byte[] bt = Encoding.Default.GetBytes(writer.ToString());
			fs.Write(bt,0,bt.Length);
			fs.Close();
		}


		/// <summary>
		/// 转换为简体中文
		/// </summary>
		public static string ToSChinese(string str)
		{
			return Strings.StrConv(str, VbStrConv.SimplifiedChinese, 0) ;
		}

		/// <summary>
		/// 转换为繁体中文
		/// </summary>
		public static string ToTChinese(string str)
		{
			return Strings.StrConv(str, VbStrConv.TraditionalChinese, 0);
		}

		/// <summary>
		/// 分割字符串
		/// </summary>
		public static string[] SplitString(string strContent, string strSplit)
		{
            if (!Utils.StrIsNullOrEmpty(strContent))
            {
                if (strContent.IndexOf(strSplit) < 0)
                {
                    string[] tmp = { strContent };
                    return tmp;
                }
                return Regex.Split(strContent, Regex.Escape(strSplit), RegexOptions.IgnoreCase);
            }
            else
            { 
                return new string[0] {};
            }
		}

        /// <summary>
        /// 分割字符串
        /// </summary>
        /// <returns></returns>
        public static string[] SplitString(string strContent, string strSplit, int count)
        {
            string[] result = new string[count];

            string[] splited = SplitString(strContent,strSplit);

            for (int i = 0; i < count; i++)
            {
                if (i < splited.Length)
                    result[i] = splited[i];
                else
                    result[i] = string.Empty;
            }

            return result;
        }

        /// <summary>
        /// 过滤字符串数组中每个元素为合适的大小
        /// 当长度小于minLength时，忽略掉,-1为不限制最小长度
        /// 当长度大于maxLength时，取其前maxLength位
        /// 如果数组中有null元素，会被忽略掉
        /// </summary>
        /// <param name="minLength">单个元素最小长度</param>
        /// <param name="maxLength">单个元素最大长度</param>
        /// <returns></returns>
        public static string[] PadStringArray(string[] strArray, int minLength, int maxLength)
        {
            if (minLength > maxLength)
            {
                int t = maxLength;
                maxLength = minLength;
                minLength = t;
            }

            int iMiniStringCount = 0;
            for (int i = 0; i < strArray.Length; i++)
            {
                if (minLength > -1 && strArray[i].Length < minLength)
                {
                    strArray[i] = null;
                    continue;
                }
                if (strArray[i].Length > maxLength)
                {
                    strArray[i] = strArray[i].Substring(0, maxLength);
                }
                iMiniStringCount++;
            }

            string[] result = new string[iMiniStringCount];
            for (int i = 0, j = 0; i < strArray.Length && j < result.Length; i++)
            {
                if (strArray[i] != null && strArray[i] != string.Empty)
                {
                    result[j] = strArray[i];
                    j++;
                }
            }


            return result;
        }

        /// <summary>
        /// 分割字符串
        /// </summary>
        /// <param name="strContent">被分割的字符串</param>
        /// <param name="strSplit">分割符</param>
        /// <param name="ignoreRepeatItem">忽略重复项</param>
        /// <param name="maxElementLength">单个元素最大长度</param>
        /// <returns></returns>
        public static string[] SplitString(string strContent, string strSplit, bool ignoreRepeatItem, int maxElementLength)
        {
            string[] result = SplitString(strContent, strSplit);
            
            return ignoreRepeatItem ? DistinctStringArray(result, maxElementLength) : result;
        }

        public static string[] SplitString(string strContent, string strSplit, bool ignoreRepeatItem, int minElementLength, int maxElementLength)
        {
            string[] result = SplitString(strContent, strSplit);

            if (ignoreRepeatItem)
            { 
                result = DistinctStringArray(result);
            }
            return PadStringArray(result, minElementLength, maxElementLength);
        }

        /// <summary>
        /// 分割字符串
        /// </summary>
        /// <param name="strContent">被分割的字符串</param>
        /// <param name="strSplit">分割符</param>
        /// <param name="ignoreRepeatItem">忽略重复项</param>
        /// <returns></returns>
        public static string[] SplitString(string strContent, string strSplit, bool ignoreRepeatItem)
        {
            return SplitString(strContent, strSplit, ignoreRepeatItem, 0);
        }

        /// <summary>
        /// 清除字符串数组中的重复项
        /// </summary>
        /// <param name="strArray">字符串数组</param>
        /// <param name="maxElementLength">字符串数组中单个元素的最大长度</param>
        /// <returns></returns>
        public static string[] DistinctStringArray(string[] strArray, int maxElementLength)
        {
            Hashtable h = new Hashtable();

            foreach (string s in strArray)
            {
                string k = s;
                if (maxElementLength > 0 && k.Length > maxElementLength)
                {
                    k = k.Substring(0, maxElementLength);
                }
                h[k.Trim()] = s;
            }

            string[] result = new string[h.Count];

            h.Keys.CopyTo(result, 0);

            return result;
        }

        /// <summary>
        /// 清除字符串数组中的重复项
        /// </summary>
        /// <param name="strArray">字符串数组</param>
        /// <returns></returns>
        public static string[] DistinctStringArray(string[] strArray)
        {
            return DistinctStringArray(strArray, 0);
        }

        /// <summary>
        /// 替换html字符
        /// </summary>
        public static string EncodeHtml(string strHtml)
		{
			if (strHtml != "")
			{
				strHtml = strHtml.Replace(",", "&def");
				strHtml = strHtml.Replace("'", "&dot");
				strHtml = strHtml.Replace(";", "&dec");
				return strHtml;
			}
			return "";
		}



        //public static string ClearHtml(string strHtml)
        //{
        //    if (strHtml != "")
        //    {

        //        r = Regex.Replace(@"<\/?[^>]*>",RegexOptions.IgnoreCase);
        //        for (m = r.Match(strHtml); m.Success; m = m.NextMatch()) 
        //        {
        //            strHtml = strHtml.Replace(m.Groups[0].ToString(),"");
        //        }
        //    }
        //    return strHtml;
        //}


		/// <summary>
		/// 进行指定的替换(脏字过滤)
		/// </summary>
		public static string StrFilter(string str, string bantext)
		{
			string text1 = "";
			string text2 = "";
			string[] textArray1 = SplitString(bantext, "\r\n");
			for (int num1 = 0; num1 < textArray1.Length; num1++)
			{
				text1 = textArray1[num1].Substring(0, textArray1[num1].IndexOf("="));
				text2 = textArray1[num1].Substring(textArray1[num1].IndexOf("=") + 1);
				str = str.Replace(text1, text2);
			}
			return str;
		}

		
		
		/// <summary>
		/// 获得伪静态页码显示链接
		/// </summary>
		/// <param name="curPage">当前页数</param>
		/// <param name="countPage">总页数</param>
		/// <param name="url">超级链接地址</param>
		/// <param name="extendPage">周边页码显示个数上限</param>
		/// <returns>页码html</returns>
		public static string GetStaticPageNumbers(int curPage, int countPage, string url, string expname, int extendPage)
		{
			int startPage = 1;
			int endPage = 1;

			string t1 = "<a href=\"" + url + "-1" + expname + "\">&laquo;</a>";
			string t2 = "<a href=\"" + url + "-" + countPage + expname + "\">&raquo;</a>";

			if(countPage < 1) countPage = 1;
			if(extendPage < 3) extendPage = 2;
			
			if(countPage > extendPage)
			{
				if(curPage - (extendPage / 2) > 0)
				{
					if(curPage + (extendPage / 2) < countPage)
					{
						startPage = curPage - (extendPage / 2);
						endPage = startPage + extendPage - 1;
					}
					else
					{
						endPage = countPage;
						startPage = endPage - extendPage + 1;
						t2 = "";
					}
				}
				else
				{
					endPage = extendPage;
					t1 = "";
				}
			}
			else
			{
				startPage = 1;
				endPage = countPage;
				t1 = "";
				t2 = "";
			}
			
			StringBuilder s = new StringBuilder("");
			
			s.Append(t1);
			for (int i = startPage; i <= endPage; i++)
			{
				if (i == curPage)
				{
					s.Append("<span>");
					s.Append(i);
					s.Append("</span>");
				}
				else
				{
					s.Append("<a href=\"");
					s.Append(url);
					s.Append("-");
					s.Append(i);
					s.Append(expname); 
					s.Append("\">");
					s.Append(i);
					s.Append("</a>");
				}
			}
			s.Append(t2);

			return s.ToString();
		}


		/// <summary>
		/// 获得帖子的伪静态页码显示链接
		/// </summary>
		/// <param name="expname"></param>
		/// <param name="countPage">总页数</param>
		/// <param name="url">超级链接地址</param>
		/// <param name="extendPage">周边页码显示个数上限</param>
		/// <returns>页码html</returns>
		public static string GetPostPageNumbers(int countPage, string url, string expname, int extendPage)
		{
			int startPage = 1;
			int endPage = 1;
			int curPage = 1;

			string t1 = "<a href=\"" + url + "-1" + expname + "\">&laquo;</a>";
			string t2 = "<a href=\"" + url + "-" + countPage + expname + "\">&raquo;</a>";

			if(countPage < 1) countPage = 1;
			if(extendPage < 3) extendPage = 2;
			
			if(countPage > extendPage)
			{
				if(curPage - (extendPage / 2) > 0)
				{
					if(curPage + (extendPage / 2) < countPage)
					{
						startPage = curPage - (extendPage / 2);
						endPage = startPage + extendPage - 1;
					}
					else
					{
						endPage = countPage;
						startPage = endPage - extendPage + 1;
						t2 = "";
					}
				}
				else
				{
					endPage = extendPage;
					t1 = "";
				}
			}
			else
			{
				startPage = 1;
				endPage = countPage;
				t1 = "";
				t2 = "";
			}
			
			StringBuilder s = new StringBuilder("");
			
			s.Append(t1);
			for(int i = startPage; i <= endPage; i++)
			{
				s.Append("<a href=\"");
				s.Append(url);
				s.Append("-");
				s.Append(i);
				s.Append(expname); 
				s.Append("\">");
				s.Append(i);
				s.Append("</a>");
			}
			s.Append(t2);

			return s.ToString();
		}
		


		/// <summary>
		/// 获得页码显示链接
		/// </summary>
		/// <param name="curPage">当前页数</param>
		/// <param name="countPage">总页数</param>
		/// <param name="url">超级链接地址</param>
		/// <param name="extendPage">周边页码显示个数上限</param>
		/// <returns>页码html</returns>
		public static string GetPageNumbers(int curPage, int countPage, string url, int extendPage)
        {
            return GetPageNumbers(curPage, countPage, url, extendPage, "page");
        }
        
		/// <summary>
		/// 获得页码显示链接
		/// </summary>
		/// <param name="curPage">当前页数</param>
		/// <param name="countPage">总页数</param>
		/// <param name="url">超级链接地址</param>
        /// <param name="extendPage">周边页码显示个数上限</param>
        /// <param name="pagetag">页码标记</param>
        /// <returns>页码html</returns>
        public static string GetPageNumbers(int curPage, int countPage, string url, int extendPage, string pagetag)
		{
            return GetPageNumbers(curPage, countPage, url, extendPage, pagetag, null);
		}

        /// <summary>
        /// 获得页码显示链接
        /// </summary>
        /// <param name="curPage">当前页数</param>
        /// <param name="countPage">总页数</param>
        /// <param name="url">超级链接地址</param>
        /// <param name="extendPage">周边页码显示个数上限</param>
        /// <param name="pagetag">页码标记</param>
        /// <param name="anchor">锚点</param>
        /// <returns>页码html</returns>
        public static string GetPageNumbers(int curPage, int countPage, string url, int extendPage, string pagetag, string anchor)
        {
            if (pagetag == "")
                pagetag = "page";
            int startPage = 1;
            int endPage = 1;

            if (url.IndexOf("?") > 0)
            {
                url = url + "&";
            }
            else
            {
                url = url + "?";
            }

            string t1 = "<a href=\"" + url + "&" + pagetag + "=1";
            string t2 = "<a href=\"" + url + "&" + pagetag + "=" + countPage;
            if (anchor != null)
            {
                t1 += anchor;
                t2 += anchor;
            }
            t1 += "\">&laquo;</a>";
            t2 += "\">&raquo;</a>";

            if (countPage < 1)
                countPage = 1;
            if (extendPage < 3)
                extendPage = 2;

            if (countPage > extendPage)
            {
                if (curPage - (extendPage / 2) > 0)
                {
                    if (curPage + (extendPage / 2) < countPage)
                    {
                        startPage = curPage - (extendPage / 2);
                        endPage = startPage + extendPage - 1;
                    }
                    else
                    {
                        endPage = countPage;
                        startPage = endPage - extendPage + 1;
                        t2 = "";
                    }
                }
                else
                {
                    endPage = extendPage;
                    t1 = "";
                }
            }
            else
            {
                startPage = 1;
                endPage = countPage;
                t1 = "";
                t2 = "";
            }

            StringBuilder s = new StringBuilder("");

            s.Append(t1);
            for (int i = startPage; i <= endPage; i++)
            {
                if (i == curPage)
                {
                    s.Append("<span>");
                    s.Append(i);
                    s.Append("</span>");
                }
                else
                {
                    s.Append("<a href=\"");
                    s.Append(url);
                    s.Append(pagetag);
                    s.Append("=");
                    s.Append(i);
                    if (anchor != null)
                    {
                        s.Append(anchor);
                    }
                    s.Append("\">");
                    s.Append(i);
                    s.Append("</a>");
                }
            }
            s.Append(t2);

            return s.ToString();
        }

		/// <summary>
		/// 返回 HTML 字符串的编码结果
		/// </summary>
		/// <param name="str">字符串</param>
		/// <returns>编码结果</returns>
		public static string HtmlEncode(string str)
		{
			return HttpUtility.HtmlEncode(str);
		}

		/// <summary>
		/// 返回 HTML 字符串的解码结果
		/// </summary>
		/// <param name="str">字符串</param>
		/// <returns>解码结果</returns>
		public static string HtmlDecode(string str)
		{
			return HttpUtility.HtmlDecode(str);
		}

		/// <summary>
		/// 返回 URL 字符串的编码结果
		/// </summary>
		/// <param name="str">字符串</param>
		/// <returns>编码结果</returns>
		public static string UrlEncode(string str)
		{
			return HttpUtility.UrlEncode(str);
		}

		/// <summary>
		/// 返回 URL 字符串的编码结果
		/// </summary>
		/// <param name="str">字符串</param>
		/// <returns>解码结果</returns>
		public static string UrlDecode(string str)
		{
			return HttpUtility.UrlDecode(str);
		}
	
	
		/// <summary>
		/// 返回指定目录下的非 UTF8 字符集文件
		/// </summary>
		/// <param name="Path">路径</param>
		/// <returns>文件名的字符串数组</returns>
		public static string[] FindNoUTF8File(string Path) 
		{ 
			//System.IO.StreamReader reader = null;
			StringBuilder filelist = new StringBuilder();   
			DirectoryInfo Folder = new DirectoryInfo(Path); 
			//System.IO.DirectoryInfo[] subFolders = Folder.GetDirectories(); 
			/*
			for (int i=0;i<subFolders.Length;i++) 
			{ 
				FindNoUTF8File(subFolders[i].FullName); 
			}
			*/
			FileInfo[] subFiles = Folder.GetFiles(); 
			for (int j = 0; j < subFiles.Length; j++) 
			{ 
				if (subFiles[j].Extension.ToLower().Equals(".htm")) 
				{           
					FileStream fs = new FileStream(subFiles[j].FullName, FileMode.Open,FileAccess.Read); 
					bool bUtf8 = IsUTF8(fs);
					fs.Close();
					if (!bUtf8)
					{
						filelist.Append(subFiles[j].FullName);
						filelist.Append("\r\n");
					}       
				} 
			}
			return Utils.SplitString(filelist.ToString(), "\r\n");
     
		} 
   
		//0000 0000-0000 007F - 0xxxxxxx  (ascii converts to 1 octet!)
		//0000 0080-0000 07FF - 110xxxxx 10xxxxxx    ( 2 octet format)
		//0000 0800-0000 FFFF - 1110xxxx 10xxxxxx 10xxxxxx (3 octet format)

		/// <summary>
		/// 判断文件流是否为UTF8字符集
		/// </summary>
		/// <param name="sbInputStream">文件流</param>
		/// <returns>判断结果</returns>
		private static bool IsUTF8(FileStream sbInputStream) 
		{ 
			int   i; 
			byte cOctets;  // octets to go in this UTF-8 encoded character 
			byte chr; 
			bool  bAllAscii= true; 
			long iLen = sbInputStream.Length; 

			cOctets = 0; 
			for (i = 0; i < iLen; i++)  
			{ 
				chr = (byte)sbInputStream.ReadByte(); 

				if ( (chr & 0x80) != 0 ) bAllAscii= false; 

				if ( cOctets == 0 )   
				{ 
					if( chr >= 0x80 )  
					{   
						do  
						{ 
							chr <<= 1; 
							cOctets++; 
						} 
						while ((chr & 0x80) != 0); 

						cOctets--;                         
						if (cOctets == 0) return false;   
					} 
				} 
				else  
				{ 
					if ((chr & 0xC0) != 0x80)  
					{ 
						return false; 
					} 
					cOctets--;                        
				} 
			} 

			if (cOctets > 0)  
			{   
				return false; 
			} 

			if (bAllAscii)  
			{     
				return false; 
			} 

			return true; 

		}

		/// <summary>
		/// 格式化字节数字符串
		/// </summary>
		/// <param name="bytes"></param>
		/// <returns></returns>
		public static string FormatBytesStr(int bytes)
		{
			if (bytes > 1073741824)
			{
				return ((double)(bytes / 1073741824)).ToString("0") + "G";
			}
			if (bytes > 1048576)
			{
				return ((double)(bytes / 1048576)).ToString("0") + "M";
			}
			if (bytes > 1024)
			{
				return ((double)(bytes / 1024)).ToString("0") + "K";
			}
			return bytes.ToString() + "Bytes";
		}

		/// <summary>
		/// 将long型数值转换为Int32类型
		/// </summary>
		/// <param name="objNum"></param>
		/// <returns></returns>
		public static int SafeInt32(object objNum)
		{
			if (objNum == null)
			{
				return 0;
			}
			string strNum = objNum.ToString();
			if (IsNumeric(strNum))
			{
				
				if (strNum.ToString().Length > 9)
				{
                    if (strNum.StartsWith("-"))
                    {
                        return int.MinValue;
                    }
                    else
                    {
                        return int.MaxValue;
                    }
				}
				return Int32.Parse(strNum);
			}
			else
			{
				return 0;
			}
		}

		/// <summary>
		/// 返回相差的秒数
		/// </summary>
		/// <param name="Time"></param>
		/// <param name="Sec"></param>
		/// <returns></returns>
		public static int StrDateDiffSeconds(string Time, int Sec)
		{
			TimeSpan ts = DateTime.Now - DateTime.Parse(Time).AddSeconds(Sec);
			if (ts.TotalSeconds > int.MaxValue)
			{
				return int.MaxValue;
			}
			else if (ts.TotalSeconds < int.MinValue)
			{
				return int.MinValue;
			}
			return (int)ts.TotalSeconds;
		}

		/// <summary>
		/// 返回相差的分钟数
		/// </summary>
		/// <param name="time"></param>
		/// <param name="minutes"></param>
		/// <returns></returns>
		public static int StrDateDiffMinutes(string time, int minutes)
		{
			if (time == "" || time == null)
				return 1;
			TimeSpan ts = DateTime.Now - DateTime.Parse(time).AddMinutes(minutes);
			if (ts.TotalMinutes > int.MaxValue)
			{
				return int.MaxValue;
			}
			else if (ts.TotalMinutes < int.MinValue)
			{
				return int.MinValue;
			}
			return (int)ts.TotalMinutes;
		}

		/// <summary>
		/// 返回相差的小时数
		/// </summary>
		/// <param name="time"></param>
		/// <param name="hours"></param>
		/// <returns></returns>
		public static int StrDateDiffHours(string time, int hours)
		{
			if (time == "" || time == null)
				return 1;
			TimeSpan ts = DateTime.Now - DateTime.Parse(time).AddHours(hours);
			if (ts.TotalHours > int.MaxValue)
			{
				return int.MaxValue;
			}
			else if (ts.TotalHours < int.MinValue)
			{
				return int.MinValue;
			}
			return (int)ts.TotalHours;
		}
		
		/// <summary>
		/// 建立文件夹
		/// </summary>
		/// <param name="name"></param>
		/// <returns></returns>
		public static bool CreateDir(string name)
		{
			return Utils.MakeSureDirectoryPathExists(name);
		}

		/// <summary>
		/// 为脚本替换特殊字符串
		/// </summary>
		/// <param name="str"></param>
		/// <returns></returns>
		public static string ReplaceStrToScript(string str)
		{
			str = str.Replace("\\","\\\\");
			str = str.Replace("'","\\'");
			str = str.Replace("\"","\\\"");
			return str;
		}

		/// <summary>
		/// 是否为ip
		/// </summary>
		/// <param name="ip"></param>
		/// <returns></returns>
		public static bool IsIP(string ip)
		{
			return Regex.IsMatch(ip, @"^((2[0-4]\d|25[0-5]|[01]?\d\d?)\.){3}(2[0-4]\d|25[0-5]|[01]?\d\d?)$");
                                     
		}


        public static bool IsIPSect(string ip)
        {
            return Regex.IsMatch(ip, @"^((2[0-4]\d|25[0-5]|[01]?\d\d?)\.){2}((2[0-4]\d|25[0-5]|[01]?\d\d?|\*)\.)(2[0-4]\d|25[0-5]|[01]?\d\d?|\*)$");

        }



		/// <summary>
		/// 返回指定IP是否在指定的IP数组所限定的范围内, IP数组内的IP地址可以使用*表示该IP段任意, 例如192.168.1.*
		/// </summary>
		/// <param name="ip"></param>
		/// <param name="iparray"></param>
		/// <returns></returns>
		public static bool InIPArray(string ip, string[] iparray)
		{
			
			string[] userip = Utils.SplitString(ip, @".");
			for (int ipIndex = 0; ipIndex < iparray.Length; ipIndex++)
			{
				string[] tmpip = Utils.SplitString(iparray[ipIndex],@".");
				int r = 0;
				for (int i = 0; i < tmpip.Length; i++)
				{
					if (tmpip[i] == "*")
					{
						return true;
					}

					if (userip.Length > i)
					{
						if (tmpip[i] == userip[i])
						{
							r ++;
						}
						else
						{
							break;
						}
					}
					else
					{
						break;
					}

				}
				if (r == 4)
				{
					return true;
				}
				

			}
			return false;

		}

		/// <summary>
		/// 获得Assembly版本号
		/// </summary>
		/// <returns></returns>
		public static string GetAssemblyVersion()
		{
            return string.Format("{0}.{1}.{2}", AssemblyFileVersion.FileMajorPart, AssemblyFileVersion.FileMinorPart, AssemblyFileVersion.FileBuildPart);
		}

		/// <summary>
		/// 获得Assembly产品名称
		/// </summary>
		/// <returns></returns>
		public static string GetAssemblyProductName()
		{
            return AssemblyFileVersion.ProductName;
		}

		/// <summary>
		/// 获得Assembly产品版权
		/// </summary>
		/// <returns></returns>
		public static string GetAssemblyCopyright()
		{
            return AssemblyFileVersion.LegalCopyright;
		}
		/// <summary>
		/// 创建目录
		/// </summary>
		/// <param name="name">名称</param>
		/// <returns>创建是否成功</returns>
		[DllImport("dbgHelp", SetLastError=true)]
		private static extern bool MakeSureDirectoryPathExists(string name);


        /// <summary>
        /// 写cookie值
        /// </summary>
        /// <param name="strName">名称</param>
        /// <param name="strValue">值</param>
        public static void WriteCookie(string strName, string strValue)
        {
            HttpCookie cookie = HttpContext.Current.Request.Cookies[strName];
            if (cookie == null)
            {
                cookie = new HttpCookie(strName);
            }
            cookie.Value = strValue;
            HttpContext.Current.Response.AppendCookie(cookie);

        }

        /// <summary>
        /// 写cookie值
        /// </summary>
        /// <param name="strName">名称</param>
        /// <param name="strValue">值</param>
        public static void WriteCookie(string strName, string key, string strValue)
        {
            HttpCookie cookie = HttpContext.Current.Request.Cookies[strName];
            if (cookie == null)
            {
                cookie = new HttpCookie(strName);
            }
            cookie[key] = strValue;
            HttpContext.Current.Response.AppendCookie(cookie);

        }
        /// <summary>
        /// 写cookie值
        /// </summary>
        /// <param name="strName">名称</param>
        /// <param name="strValue">值</param>
        /// <param name="strValue">过期时间(分钟)</param>
        public static void WriteCookie(string strName, string strValue, int expires)
        {
            HttpCookie cookie = HttpContext.Current.Request.Cookies[strName];
            if (cookie == null)
            {
                cookie = new HttpCookie(strName);
            }
            cookie.Value = strValue;
            cookie.Expires = DateTime.Now.AddMinutes(expires);
            HttpContext.Current.Response.AppendCookie(cookie);

        }

        /// <summary>
        /// 读cookie值
        /// </summary>
        /// <param name="strName">名称</param>
        /// <returns>cookie值</returns>
        public static string GetCookie(string strName)
        {
            if (HttpContext.Current.Request.Cookies != null && HttpContext.Current.Request.Cookies[strName] != null)
            {
                return HttpContext.Current.Request.Cookies[strName].Value.ToString();
            }

            return "";
        }

        /// <summary>
        /// 读cookie值
        /// </summary>
        /// <param name="strName">名称</param>
        /// <returns>cookie值</returns>
        public static string GetCookie(string strName, string key)
        {
            if (HttpContext.Current.Request.Cookies != null && HttpContext.Current.Request.Cookies[strName] != null && HttpContext.Current.Request.Cookies[strName][key] != null)
            {
                return HttpContext.Current.Request.Cookies[strName][key].ToString();
            }

            return "";
        }

		/// <summary>
		/// 得到论坛的真实路径
		/// </summary>
		/// <returns></returns>
		public static string GetTrueForumPath()
		{
			string forumPath = HttpContext.Current.Request.Path;
			if (forumPath.LastIndexOf("/") != forumPath.IndexOf("/"))
			{
				forumPath = forumPath.Substring(forumPath.IndexOf("/"), forumPath.LastIndexOf("/") + 1);
			}
			else
			{
				forumPath = "/";
			}
			return forumPath;

		}

		/// <summary>
		/// 判断字符串是否是yy-mm-dd字符串
		/// </summary>
		/// <param name="str">待判断字符串</param>
		/// <returns>判断结果</returns>
		public static bool IsDateString(string str)
		{
			return Regex.IsMatch(str, @"(\d{4})-(\d{1,2})-(\d{1,2})");
		}

		/// <summary>
		/// 移除Html标记
		/// </summary>
		/// <param name="content"></param>
		/// <returns></returns>
		public static string RemoveHtml(string content)
		{
			string regexstr = @"<[^>]*>";
			return Regex.Replace(content, regexstr, string.Empty, RegexOptions.IgnoreCase);
		}
		
		/// <summary>
		/// 过滤HTML中的不安全标签
		/// </summary>
		/// <param name="content"></param>
		/// <returns></returns>
		public static string RemoveUnsafeHtml(string content)
		{
		    content = Regex.Replace(content, @"(\<|\s+)o([a-z]+\s?=)", "$1$2", RegexOptions.IgnoreCase);
            content = Regex.Replace(content, @"(script|frame|form|meta|behavior|style)([\s|:|>])+", "$1.$2", RegexOptions.IgnoreCase);
            return content;
        }

        /// <summary>
        /// 将用户组Title中的font标签去掉
        /// </summary>
        /// <param name="title">用户组Title</param>
        /// <returns></returns>
        public static string RemoveFontTag(string title)
        {
            Match m = RegexFont.Match(title);
            if (m.Success)
            {
                return m.Groups[1].Value;
            }
            return title;
        }

        /// <summary>
        /// 判断对象是否为Int32类型的数字
        /// </summary>
        /// <param name="Expression"></param>
        /// <returns></returns>
        public static bool IsNumeric(object Expression)
        {
            return TypeParse.IsNumeric(Expression);
        }
        /// <summary>
        /// 从HTML中获取文本,保留br,p,img
        /// </summary>
        /// <param name="HTML"></param>
        /// <returns></returns>
        public static string GetTextFromHTML(string HTML)
        {
            System.Text.RegularExpressions.Regex regEx = new System.Text.RegularExpressions.Regex(@"</?(?!br|/?p|img)[^>]*>", System.Text.RegularExpressions.RegexOptions.IgnoreCase);

            return regEx.Replace(HTML,"");
        }

        public static bool IsDouble(object Expression)
        {
            return TypeParse.IsDouble(Expression);
        }

        /// <summary>
        /// object型转换为bool型
        /// </summary>
        /// <param name="strValue">要转换的字符串</param>
        /// <param name="defValue">缺省值</param>
        /// <returns>转换后的bool类型结果</returns>
        public static bool StrToBool(object expression, bool defValue)
        {
            return TypeParse.StrToBool(expression, defValue);
        }

        /// <summary>
        /// string型转换为bool型
        /// </summary>
        /// <param name="strValue">要转换的字符串</param>
        /// <param name="defValue">缺省值</param>
        /// <returns>转换后的bool类型结果</returns>
        public static bool StrToBool(string expression, bool defValue)
        {
            return TypeParse.StrToBool(expression, defValue);
        }

        /// <summary>
        /// 将对象转换为Int32类型
        /// </summary>
        /// <param name="expression">要转换的字符串</param>
        /// <param name="defValue">缺省值</param>
        /// <returns>转换后的int类型结果</returns>
        public static int StrToInt(object expression, int defValue)
        {
            return TypeParse.StrToInt(expression, defValue);
        }

        /// <summary>
        /// 将字符串转换为Int32类型
        /// </summary>
        /// <param name="expression">要转换的字符串</param>
        /// <param name="defValue">缺省值</param>
        /// <returns>转换后的int类型结果</returns>
        public static int StrToInt(string expression, int defValue)
        {
            return TypeParse.StrToInt(expression, defValue);
        }

        /// <summary>
        /// Object型转换为float型
        /// </summary>
        /// <param name="strValue">要转换的字符串</param>
        /// <param name="defValue">缺省值</param>
        /// <returns>转换后的int类型结果</returns>
        public static float StrToFloat(object strValue, float defValue)
        {
            return TypeParse.StrToFloat(strValue, defValue);
        }

        /// <summary>
        /// string型转换为float型
        /// </summary>
        /// <param name="strValue">要转换的字符串</param>
        /// <param name="defValue">缺省值</param>
        /// <returns>转换后的int类型结果</returns>
        public static float StrToFloat(string strValue, float defValue)
        {
            return TypeParse.StrToFloat(strValue, defValue);
        }

        /// <summary>
        /// 判断给定的字符串数组(strNumber)中的数据是不是都为数值型
        /// </summary>
        /// <param name="strNumber">要确认的字符串数组</param>
        /// <returns>是则返加true 不是则返回 false</returns>
        public static bool IsNumericArray(string[] strNumber)
        {
            return TypeParse.IsNumericArray(strNumber);
        }


        public static string AdDeTime(int times)
        {
            string newtime = (DateTime.Now).AddMinutes(times).ToString();
            return newtime;
        
        }
        /// <summary>
        /// 验证是否为正整数
        /// </summary>
        /// <param name="str"></param>
        /// <returns></returns>
        public static bool IsInt(string str)
        {

           return Regex.IsMatch(str,@"^[0-9]*$");     
        }

        public static bool IsRuleTip(Hashtable NewHash,string ruletype,out string key)
        {
            key = "";
            foreach (DictionaryEntry str in NewHash)
            {

                try
                {
                    string[] single = SplitString(str.Value.ToString(), "\r\n");

                    foreach (string strs in single)
                    {
                        if (strs != "")


                            switch(ruletype.Trim().ToLower())
                            {
                                case "email":
                                    if (IsValidDoEmail(strs.ToString()) == false)
                                        throw new Exception();
                                break;
                               
                                case "ip":
                                    if (IsIPSect(strs.ToString()) == false)
                                    throw new Exception();
                                break;

                            case "timesect":
                            string[] splitetime = strs.Split('-');
                            if (Utils.IsTime(splitetime[1].ToString()) == false || Utils.IsTime(splitetime[0].ToString()) == false)
                               throw new Exception();
                              break;
                            
                            }
 
                    }


                }
                catch
                {
                    key = str.Key.ToString();
                    return false;
                }
            }
            return true;
        
        }

        /// <summary>
        /// 删除最后一个字符
        /// </summary>
        /// <param name="str"></param>
        /// <returns></returns>
        public static string ClearLastChar(string str)
        {
            if (str == "")
                return "";
            else
                return str.Substring(0, str.Length - 1);
        }

        /// <summary>
        /// 备份文件
        /// </summary>
        /// <param name="sourceFileName">源文件名</param>
        /// <param name="destFileName">目标文件名</param>
        /// <param name="overwrite">当目标文件存在时是否覆盖</param>
        /// <returns>操作是否成功</returns>
        public static bool BackupFile(string sourceFileName, string destFileName, bool overwrite)
        {
            if (!System.IO.File.Exists(sourceFileName))
            {
                throw new FileNotFoundException(sourceFileName + "文件不存在！");
            }
            if (!overwrite && System.IO.File.Exists(destFileName))
            {
                return false;
            }
            try
            {
                System.IO.File.Copy(sourceFileName, destFileName,true);
                return true;
            }
            catch (Exception e)
            {
                throw e;
            }
        }


        /// <summary>
        /// 备份文件,当目标文件存在时覆盖
        /// </summary>
        /// <param name="sourceFileName">源文件名</param>
        /// <param name="destFileName">目标文件名</param>
        /// <returns>操作是否成功</returns>
        public static bool BackupFile(string sourceFileName, string destFileName)
        {
            return BackupFile(sourceFileName, destFileName, true);
        }


        /// <summary>
        /// 恢复文件
        /// </summary>
        /// <param name="backupFileName">备份文件名</param>
        /// <param name="targetFileName">要恢复的文件名</param>
        /// <param name="backupTargetFileName">要恢复文件再次备份的名称,如果为null,则不再备份恢复文件</param>
        /// <returns>操作是否成功</returns>
        public static bool RestoreFile(string backupFileName,string targetFileName,string backupTargetFileName)
        {
            try
            {
                if (!System.IO.File.Exists(backupFileName))
                {
                    throw new FileNotFoundException(backupFileName + "文件不存在！");
                }
                if (backupTargetFileName != null)
                {
                    if (!System.IO.File.Exists(targetFileName))
                    {
                        throw new FileNotFoundException(targetFileName + "文件不存在！无法备份此文件！");
                    }
                    else
                    {
                        System.IO.File.Copy(targetFileName, backupTargetFileName,true);
                    }
                }
                    System.IO.File.Delete(targetFileName);
                    System.IO.File.Copy(backupFileName, targetFileName);
                }
            catch (Exception e)
            {
                throw e;
            }
            return true;
        }

        public static bool RestoreFile(string backupFileName, string targetFileName)
        {
            return RestoreFile(backupFileName, targetFileName, null);
        }

        /// <summary>
        /// 获取记录模板id的cookie名称
        /// </summary>
        /// <returns></returns>
        public static string GetTemplateCookieName()
        {
            return TemplateCookieName;
        }

        /// <summary>
        /// 将全角数字转换为数字
        /// </summary>
        /// <param name="SBCCase"></param>
        /// <returns></returns>
        public static string SBCCaseToNumberic(string SBCCase)
        {
            char[] c = SBCCase.ToCharArray();
            for (int i=0 ; i < c.Length ; i++)
            {
                byte[] b = System.Text.Encoding.Unicode.GetBytes(c,i,1);
                if (b.Length == 2)
                {
                    if (b[1] == 255)
                    {
                        b[0] = (byte)(b[0]+32);
                        b[1] = 0;
                        c[i] = System.Text.Encoding.Unicode.GetChars(b)[0];
                    }
                }
            }
            return new string(c);
        }

        /// <summary>
        /// 将字符串转换为Color
        /// </summary>
        /// <param name="color"></param>
        /// <returns></returns>
        public static Color ToColor(string color)
        {
            int red, green, blue = 0;
            char[] rgb;
            color = color.TrimStart('#');
            color = Regex.Replace(color.ToLower(), "[g-zG-Z]", "");
            switch (color.Length)
            { 
                case 3:
                    rgb = color.ToCharArray();
                    red = Convert.ToInt32(rgb[0].ToString() + rgb[0].ToString(), 16);
                    green = Convert.ToInt32(rgb[1].ToString() + rgb[1].ToString(), 16);
                    blue = Convert.ToInt32(rgb[2].ToString() + rgb[2].ToString(), 16);
                    return Color.FromArgb(red, green, blue);
                case 6:
                    rgb = color.ToCharArray();
                    red = Convert.ToInt32(rgb[0].ToString() + rgb[1].ToString(), 16);
                    green = Convert.ToInt32(rgb[2].ToString() + rgb[3].ToString(), 16);
                    blue = Convert.ToInt32(rgb[4].ToString() + rgb[5].ToString(), 16);
                    return Color.FromArgb(red, green, blue);
                default:
                    return Color.FromName(color);

            }
        }
       /// <summary>
        /// 转换长文件名为短文件名
       /// </summary>
       /// <param name="filename"></param>
       /// <param name="repstring"></param>
       /// <param name="leftnum"></param>
       /// <param name="rightnum"></param>
       /// <param name="charnum"></param>
       /// <returns></returns>
        public static string ConvertSimpleFileName(string fullname,string repstring,int leftnum,int rightnum,int charnum)
        {
            string simplefilename = "", leftstring = "", rightstring = "", filename = "";
           
            string extname = GetFileExtName(fullname);
            if (extname == "" || extname == null)
            {

                throw new Exception("字符串不含有扩展名信息");
            }
            int filelength = 0, dotindex = 0;
            
            dotindex = fullname.LastIndexOf('.');
            filename = fullname.Substring(0, dotindex);
            filelength = filename.Length;
            if (dotindex > charnum)
            {
                leftstring = filename.Substring(0, leftnum);
                rightstring = filename.Substring(filelength - rightnum, rightnum);
                if (repstring == "" || repstring == null)
                {
                    simplefilename = leftstring + rightstring + "." + extname;
                }
                else
                {
                    simplefilename = leftstring + repstring + rightstring + "." + extname;
                }
            }
            else
            {

                simplefilename = fullname;
            }
            return simplefilename;
        
        }

        public static string GetFileExtName(string filename)
        {
            string[] array = filename.Trim().Split('.');
            Array.Reverse(array);
            return array[0].ToString();
        }


         /// <summary>
        /// 将数据表转换成JSON类型串
        /// </summary>
        /// <param name="dt">要转换的数据表</param>
        /// <returns></returns>
        public static StringBuilder DataTableToJSON(System.Data.DataTable dt)
        {
            return DataTableToJson(dt, true);
        }

        /// <summary>
        /// 将数据表转换成JSON类型串
        /// </summary>
        /// <param name="dt">要转换的数据表</param>
        /// <param name="dispose">数据表转换结束后是否dispose掉</param>
        /// <returns></returns>
        public static StringBuilder DataTableToJson(System.Data.DataTable dt, bool dt_dispose)
        {
            StringBuilder stringBuilder = new StringBuilder();
            stringBuilder.Append("[\r\n");

            //数据表字段名和类型数组
            string[] dt_field = new string[dt.Columns.Count];
            int i = 0;
            string formatStr = "{{";
            string fieldtype = "";
            foreach (System.Data.DataColumn dc in dt.Columns)
            {
                dt_field[i] = dc.Caption.ToLower().Trim();
                formatStr += "'" + dc.Caption.ToLower().Trim() + "':";
                fieldtype = dc.DataType.ToString().Trim().ToLower();
                if (fieldtype.IndexOf("int") > 0 || fieldtype.IndexOf("deci") > 0 ||
                    fieldtype.IndexOf("floa") > 0 || fieldtype.IndexOf("doub") > 0 ||
                    fieldtype.IndexOf("bool") > 0)
                {
                    formatStr += "{" + i + "}";
                }
                else
                {
                    formatStr += "'{" + i + "}'";
                }
                formatStr += ",";
                i++;
            }

            if (formatStr.EndsWith(","))
            {
                formatStr = formatStr.Substring(0, formatStr.Length - 1);//去掉尾部","号
            }
            formatStr += "}},";

            i = 0;
            object[] objectArray = new object[dt_field.Length];
            foreach (System.Data.DataRow dr in dt.Rows)
            {

                foreach (string fieldname in dt_field)
                {   //对 \ , ' 符号进行转换 
                    objectArray[i] = dr[dt_field[i]].ToString().Trim().Replace("\\", "\\\\").Replace("'", "\\'");
                    switch (objectArray[i].ToString())
                    {
                        case "True":
                            {
                                objectArray[i] = "true"; break;
                            }
                        case "False":
                            {
                                objectArray[i] = "false"; break;
                            }
                        default: break;
                    }
                    i++;
                }
                i = 0;
                stringBuilder.Append(string.Format(formatStr, objectArray));
            }
            if (stringBuilder.ToString().EndsWith(","))
            {
                stringBuilder.Remove(stringBuilder.Length - 1, 1);//去掉尾部","号
            }

            if (dt_dispose)
            { 
                dt.Dispose(); 
            }
            return stringBuilder.Append("\r\n];");
        }

        /// <summary>
        /// 字段串是否为Null或为""(空)
        /// </summary>
        /// <param name="str"></param>
        /// <returns></returns>
        public static bool StrIsNullOrEmpty(string str)
        {
//#if NET1
            if(str == null || str.Trim() == "")
            {
                return true;
            }
//#else
//            if (string.IsNullOrEmpty(str))
//            {
//                return true;
//            }
//#endif

            return false;
        }

        /// <summary>
        /// 是否为数值串列表，各数值间用","间隔
        /// </summary>
        /// <param name="numList"></param>
        /// <returns></returns>
        public static bool IsNumericList(string numList)
        {
            if (numList == "")
                return false;
            foreach(string num in numList.Split(','))
            {
                if (!IsNumeric(num))
                    return false;
            }
            return true;
        }

        /// <summary>
        /// 检查颜色值是否为3/6位的合法颜色
        /// </summary>
        /// <param name="color">待检查的颜色</param>
        /// <returns></returns>
        public static bool CheckColorValue(string color)
        {
            if (StrIsNullOrEmpty(color))
            {
                return false;
            }

            color = color.Trim().Trim('#');

            if (color.Length != 3 && color.Length != 6)
            {
                return false;
            }
            //不包含0-9  a-f以外的字符
            if (!Regex.IsMatch(color, "[^0-9a-f]", RegexOptions.IgnoreCase))
            {
                return true;
            }
            return false;
        }

        /// <summary>
        /// 获取ajax形式的分页链接
        /// </summary>
        /// <param name="curPage">当前页数</param>
        /// <param name="countPage">总页数</param>
        /// <param name="callback">回调函数</param>
        /// <param name="extendPage">周边页码显示个数上限</param>
        /// <returns></returns>
        public static string GetAjaxPageNumbers(int curPage, int countPage, string callback, int extendPage)
        {
            string pagetag = "page";
            int startPage = 1;
            int endPage = 1;

            string t1 = "<a href=\"###\" onclick=\"" + string.Format(callback, "&" + pagetag + "=1");
            string t2 = "<a href=\"###\" onclick=\"" + string.Format(callback, "&" + pagetag + "=" + countPage);

            t1 += "\">&laquo;</a>";
            t2 += "\">&raquo;</a>";

            if (countPage < 1)
                countPage = 1;
            if (extendPage < 3)
                extendPage = 2;

            if (countPage > extendPage)
            {
                if (curPage - (extendPage / 2) > 0)
                {
                    if (curPage + (extendPage / 2) < countPage)
                    {
                        startPage = curPage - (extendPage / 2);
                        endPage = startPage + extendPage - 1;
                    }
                    else
                    {
                        endPage = countPage;
                        startPage = endPage - extendPage + 1;
                        t2 = "";
                    }
                }
                else
                {
                    endPage = extendPage;
                    t1 = "";
                }
            }
            else
            {
                startPage = 1;
                endPage = countPage;
                t1 = "";
                t2 = "";
            }

            StringBuilder s = new StringBuilder("");

            s.Append(t1);
            for (int i = startPage; i <= endPage; i++)
            {
                if (i == curPage)
                {
                    s.Append("<span>");
                    s.Append(i);
                    s.Append("</span>");
                }
                else
                {
                    s.Append("<a href=\"###\" onclick=\"");
                    s.Append(string.Format(callback, pagetag + "=" + i));
                    s.Append("\">");
                    s.Append(i);
                    s.Append("</a>");
                }
            }
            s.Append(t2);

            return s.ToString();
        }

        /// <summary>
        /// 根据Url获得源文件内容
        /// </summary>
        /// <param name="url">合法的Url地址</param>
        /// <returns></returns>
        public static string GetSourceTextByUrl(string url)
        {
            WebRequest request = WebRequest.Create(url);
            request.Timeout = 20000;//20秒超时
            WebResponse response = request.GetResponse();

            Stream resStream = response.GetResponseStream();
            StreamReader sr = new StreamReader(resStream);
            return sr.ReadToEnd();
        }

    } 
}
